Braiding machine



Dec. 4 1923. 1,475,981

E. BAcHLl l 3 Sheets-Sheetl 2 E. BcHLl BRIDING MACHINE Filed oet. 13, 1922vv s sheets-sheet .imm i J I4 74 s 1f' g 75 i' M 7? l Y i 76W l j, l l 73 11 1/ f1 57] 7 78 1 I l Ir f2 ,.I Il', :gli [l-I I? Patented Dec.. 4, 1923.

narran stars rer-ENT @Frist-1.5

. ERNST BCHLI, or LAFEOHR, NEARA BEUGG, SWITZERLAND. Y

BRAIDING MACHINE.

j AApplication vfiled October 13, 1922. Serial No. 594,398.

To all whom it may conce/m Be it known that l', ERNST BcnLr, citizen of the Republic of Switzerland, residingat Vway being omitted in the right hand partV Lauffohr, near Brugg, Switzerland, have invented certain new and useful 1improvements in Braiding Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

rlhe present invention relates to improvements inbraiding machines provided with a jacquardv mechanism. In the braiding machine according to the invention the drivers are arranged one-beside the ot-her around a circlel and are not in direct operative connection with each other but each driver can be singly rotated by the action of an oscillating organ and in a direction that is opposite to the direction in which theV adjacent drivers 'are rotated.

The intermeshing gear wheels which rotate the drivers constantly with other known types of braidingrmachinesY are done away with; only those drivers are rotated in the braiding machine, according to the invention, with which the spool carriers have to move at the time being, the other drivers standing still during that period. A braiding carrier is thereby practically prevented from moving along a wrong race way and a meeting of two braiding carriers or bobbins is prevented as the adjacent drivers rotate in opposite directions.

Two examples of the device according to the present invention are illustrated on the accompanying drawing, in which Fig. 1 shows in an elevation view and partly in a vertical section drivers and parts Vof the driving mechanism of one form of the braiding machine, y 1

Y Fig. 2 is a vertical section along line 'Il-H of Fig. 1, .Y

3 is a plan view partly in a horizontal section of the parts shown in Fig. 1,

Fig. 4 is a horizontal section 'along line Fig. 9 is a Section along iinveiXiX '0fv liig. 71() shows a modified construction'in an manner. j ence of a driverdisc 3 are so shaped that details of the jacquard:

and v Y j f Fig. 11 is a plan view of FigilO, the raceof the ligure. Y

vReferring to the Vexample illustrated in Figs. 1-9, 1 denotes the base place and 2 the race way consisting of an inner and an outer part arranged'so Vas to formapertures. in which the discs 3 of the drivers are located. Bolts 4 are fixed to the'base lplate 1, the bolts being provided attheir upper ends at 5 with screw threads, on which nuts 7 and antifriction balls 6 running on theV upper surface of the discsv 3 .are arranged. vThe lowerpart of each driver consists of a sleeve 8.

ing to' take upthe spindle 10, onto .which the spools or pirns are pushed in a known The recesses`9Y on the circumfertwo adjacent drivers can hold a braidingI carrier between them and that the recesses together with theedges of the apertures in the race way 2 form the guides for the braidelevation and partly in a vertical section l The disc V3 of'each driveris provided with tworecesses 9 at its circumference serving carrier when the llatter is moved around v the vaxis of a driverf rlhe bolts Y4 [rest Yon the base platewl by means .of a `collar l1` which is preferably integral with the bolts.

The collar 11 is lprovided with two grooves 12 in which two vertical extensions 13 of a member 14 are guided. The member14ris slidable inside the. sleeve Sand is provided at its upper `face'with a cam surface. The member 14 is further slidably yarranged on the bolt4 4, it can therefore'bedisplaced in thefaXial direction-but isprevented from carrying outa turning motion relatively to the bolt 4. The cam surface of themember 14 is provided with A"twoelevations 16 and two'depressions 17 and this cam surface is pressed by thelaction of the coil-spring 15 i against two pins 184 screwed radially into the l sleeve 8. -Upon a turning of the sleeve 8- the pins 18 'move-along the cam surface, and as the sleeve 8 .is secured against an axial displacement by the nuts 7 and the plate 1,'thel I i member 14 is reciprocated by the' action of` the pins'18 and the coil spring 15.,.the former pressing the'V member 14 'in the downward direction when .the pins '18.move fromi a depression 17 to an elevation 16 and the coil spring 15 'urgeSthe -inember in the upward direction when :the pins 18 move; from van elevation 16m a dePression 17 of .the cam face@ Y A Each sleeve`8 is further` provided on its outer circumference with two radially projecting' beal''szon wing 'shaped extensions 19 Y and 20 situated near the base platel. TheV wings 19 and 20 appertaining to the drivers designated by uneven Roman iigui'es in Fig. 3 are arranged at a higher elevation thantliewings appertaining tol the drivers designated by even Roman iigures, so that kthe wings .of 1.ad3acentsleevesl 8,01: driversV donot. hindermeach other in their turning movement, 21 and 22 are pins formingparts of a known Jacquard mechanism which is illustrated in Figs, v6 9. The pins Vv21 and 22 act as stops. to `the ;wings .19,and 20 respectively and prevent a rotating'movement 'of the drivers. 23 denotes a ringnionnted in guides 24 (to Whichringl on, oscillating movement is imparted `by means described hereinatter. ',lhering`23 is provided with ;projecting'parts26` (Figs. 2 and 3) which strike against the,wings19 or .2Q when the latter *are in suitablek positions, :the strikingof a part 26 against; a wing 19 or 20 initiatesa turning'movement vof thev sleeve `8, and ythe driver.4 As may-be seen in Fig. 3 the pins '21 and 22 lock the'wngs A19 and20 respectively or" the. hobbin ,heads II andv IIIA in such positions that thewings19 and20V do notproject into ,the ,pathpf the parts 26 when `the latteritake part inthe .oscillating movement OttherngJQS. -When the stop pins 21,;,or'-22naremwithdrawn.by the jacguardmechanism.'the,sleeve 8 will be turned to some extent by the action of theslightly compressed coil springll causing an in- -clined portion of th'ecam surface toslide past thepinsv18. Uponthis slight turning movement of the sleeve 8' Jfrom the position shown for they driverl-II ,into the position ofthe driver I in 3, 1the twing 2O pro- `jects nowinto 'the4 path of thestriker part 26 of the ring23 and .by the movement of ring 23 .in one direction. thestriker part 26 engages with the` wing20 andturns they sleeve Sol thek driver to some extent in theidirec.-

Vtion v indicated by v,the arrow in Fig. 3.

Through, this. turning; `movement ,of .the 'sleeve 8 ,the pins 18 -wipe overan elevation 16 off the ilcam surtace ywhereby-,the coil spring` 15 iscofmpressed; as soonfas the elevation 16,is,passeddthe.compression of the.

Vspring ,15v causesthe..`inclined portion between rthe elevation 16 and the next vdepression 17 ofthef'cani surffiioeto l slide: past the V Vpin-,18:v whereby a, further turningmotion of the sleeve` Sand therebyf the v:driver results'. The striker ,parts 26 therefore `only initiate the, turningrmotion of thef, drivers and this motonisompleted to half, wturn bythe aotonnfthe coil springe'. fthe v.oem surfaces .ceope'ratingnith .tllepilgs 18a lllie strikerparts 26er@J vspaced along" the ring 23at .such distance thaty every other driver (l, lll, V) can be turned in one direction` by the ring 28 moving in one direction of l its oscillating motion whereas the interv Y l' mediate drivers (Il, lVr-,lVl-) are turned in be operated in order to obtain a desirable braiding pattern yis carried, ,out,by the jac'- quard mechanism Y by causing theJ vwithdrawal of thev desirable stop *pinsL 21, 22,

which is carried out by the following means.

The stop pins 21 which cooperate with the drivers `designated by uneven numbers in Fig are connected at'theii'glower ends to vpulling' members 27 connectedby means or bell. lcrank levers 28, links 29, belly crank levers 30,Y pnllingf members 31Y t0,` the platines 32 which are in operative: engagen'ient with the lifting bar 33. JltlachistopA pin 22 cooperating wit-ha driver bearing a cam Vnumbenin Fig. 3 is similarly connectedfby. the parts 34E', 35 k36, 37, ,38, 39 to ythe lifting bar `ett), (Fig, 6;. .el and l2 .(/Figx 7) denote jacquard needles which-:are connected with the platines 32 and39 respectively and which cooperate with thepattern-chain 48 providedl with aniimber ofapertures. The pattern-chain passes over and is intermittently moved by the` turning motionz'ot a member 44 ot square cross-sectionvThe member ley lll() spending lifting bar that it will take part in the upward movement of Said bar, whereby the stop pin 21 or 22 respectively operatively connected rto that Aplatine will be withdrawn. Upon the downward movement of the lifting bar ,the stops 21 and 22 are returnedV into their` raised positions by the action ofthe spring 21l and` 22. respectively. When there is no` aperture in the pattern chain at the point in which the needle abuts when the Imember 44 is vinovedtowards the needle, the latter movement causes the needle tobe pushed back, wherebythe platine connected withsaidneedle is brought out ot operativeengagement .with the corresponding lifting bar and the stop pin 21 or 22 respectively remains in its operative position. =lock Y lill v8 and 9) is ro- Y iso bar 33 by means of links, 52' and 53 and bell` crank lever 54. In a similar manner the reciprocating movement of the lifting bar '64 V'every time the member 44 is moved -away from the needles.

lt will thus be seen that all the stop pins 21`can be operatively connected to the lifting bai' 83V and can be simultaneously with-A drawn whereas all the stop pins 22 can be simultaneously operated by the lifting bar 40, the actually operative drivers depending on the apertures in the pattern chain. Upon the oscillating movement of the ring 23 Ain one direction every other driver' will be rotated and the movement of the ring 23 in -the other direction will cause the rotation of the intermediate drivers. The means to impart the oscillating movement to the ring `23V are illustrated in Fig. 9 and consist of a.

crank fixed to the upper end of shaft 47,

thev ycrank pin 66 being connected a linkv 67 to an eye 68 of the ring 23.

vUpon the alternate turning motion' of one ser-ies of the drivers in one direction and thereafter of the other series of the drivers in the other direction the braiding carriers are transferred from'one driver to the adjacent one and wander in a sinuous path around the centre of the braiding machine.

Thereby the threads fromV the spools arel braided at the braiding point A69. The

, braided fabric. is wound aroundra core 70 and the finished fabric is continuously pulled of? that core by the known mechanism illustrated in Figs. 6 and 9 and finally wound on a reel 71.

'ln' Figs. l0 andll a modification to the device for effectingl the turning of thedrivers is shown. `The sleeve 8 carrying the driving discs 3 of the driver is rotatably .mounted fon a hollow bolt'4 fixed to the base plate 1 of the machine. Instead of the memf ber 14 provided with a cam surface at' its upper end a Vcam 14 is provided integral withthesleeve 8. rlwo levers 72 and 7 3 are v turnably mounted on the set screw74 acting Y carry antifriction-ollers .Sil

Y against the faces of the cams 14. The cam as fulcrum. The free ends of said levers 75 andV 76 respectively which cooperate with the cams -14 of twoadjacent drivers. A compression spring '7 7 common to both levers .72 and 7 3 is inserted between Vextensions 78 and 79 of said levers and urges both rollers 75 and 76 14y is provided with two elevations 16 and two depressions l17 in a similar .manner asv the cam surface of the member 14-in thc form illustrated inFig. 1 and the effect of the rollers on the runder the action of the spring issimilar to the action of the cam surface of member. 14, pins f18 vand springl in'the'form shown in Fig. 1 and v causes a turning of the driver after' the turning movement liasbeen initiated. The means for vinitiating said turning movements of the driver show some modifications as.A y

compared with Y first example. Instead of the oscillating ring 23 a toothed rim 8O is utilized to which.

an oscillating movement is imparted bythe the-means provided in the link 67. l Four wings 81 of small` height arey provided and shaped to form teeth which are adapted to cooperate with the teeth of` the rim 80 and form together a pinion of a 'square shape when seen in pian view. Two

of said teethlying diametrically opposite? each other are provided with' downwardly extending'lugs 82 for engagement withfthe l jacquard stop pins 2.1 and 22 respectively. When the latter are withdrawn the roller 75 causes the cam to turn through a small angle until the roller has reached thedepression 17 of thev cam. `When this' is thek case the Liriver will be in an angular position shown by the third driver in Fig.:11. In this position one of' the tooth shaped wings 82 projects intoV the path,l of the toothed rim 8O and .will mesh with atooth ofthe latter when the rim oscillates in the direction of the arrow' shown in Fig. 11. The driver will then be turned and the cam 14 causes theroller 75- to carry'out a turning movement about the 4fulcrum-74 of the lever 72.v` As' therroller 76 of the lever 7 3 abu'ts against theV cam 14 of thev adjacent driver which is prevented.'A

from carrying outA a turning' movement 'by the stop 'pin 22, which is notwithdrawn, theV spring 77 is compressed.V As soo'n as the turning motion of thefdriver through the medium of the toothedv rim 80 has beencarried so far-that the roller 75 has passed the elevation 16 of the cam, the' driverwill be further turned by the action of the roller 75 on that cam. Every alternate driver will `be 115 i turnedv in one direction when the toothed rim 8O oscillates in one direction and theother drivers will be turned lthereafter inthe other' 'direction'when the toothed rim 8O oscillates inthe other direction, and when all the stoppins 21 are simultaneously withdrawn by the jacquard mechanism previous to the turning miV motionfin `one direction and when all the stop pins 22 arewithdrawn vprevious to the" turning motion in the otherdirection by a jacquard mechanism of the same type as has been described hereinbefore'.

l claim: Y Y 1. A braiding combination,` a base plate, a plurality of drivers rotatably mounted on said baser* machine comprising in 9 la c plate Anand spaced around a circ1e,`a cam on each driver, a roller cooperating vvith` said cam, a spring pressing said roller against said cam and adapted to cause ythereby a turning motion of the driver,

oscillating means adapted to impart to each driver of a group comprisingevery alter- Y nate driver an intermittent turning motion 'Ydireetioin said turning motion being completed to a desired extent by the action of said cam, roller and spring arrangement, a

jacquard mechanism, and means operated byV said jacquard Vmechanism Vto cause a number of individual drivers to come into operative connection .vith'said means for imparting intermittent rotation to the drivers, the selection of the operative drivers being controlled by a pattern chain of the jacquard mechanism.

2A braiding machine comprising in combination, a vbase plate, a plurality of drivers rotatably mounted on said base plate and spaced around a circle, a cam on each driver, Ya roller cooperating With said cam, va spring pressing said roller against said cam and adapted to cause thereby a turning motion of the driver, oscillating means adapted to impart to each driver of a group comprising every alter nate driver an intermittent turning motion in one direction andY to impart to each driver of a group comprising every-driver intermediate to the drivers or the iirst group an intermittent turning motion in the other direction, said turning motions being completed to a desired extent by the action of said cam, roller and spring arrangement, a jacquard mechanism, projections provided on said drivers, and a displaceable stop pin to each driver cooperating ivith said projections and operatively connected tosaid jacquard mechanism, the displacement of said stop 'pins causing the respective drivers to come into operative connection with said oscillating means for imparting intermittent rotation to said drivers.

8. braiding machine comprising Yin combination, a base plate, a plurality ofV drivers rotatably mounted on said base plate and spaced around a circle, a cam on eachV driver, a roller cooperating withl said cam, a spring pressing said roller ag'ainstsai'd cam and adaptedY to cause thereby 7a turning motion Vof the driver,

to E' be brought in and out ,of mesh With.

said toothedrim so that to each driver of a group comprising. every alternate driver. Van intermittentturning motion in one direction may `be imparted when said toothed rim oscillates in one directionk and to each driver et a group comprising every driver intermediate to the drivers of the `first group an intermittent turning motionin the other direction maybe imparted, saidv turning motion being completed toa desired extent by theL action otsaid cani, roller and springarrangement, a Vjacquard mechanism, and means operated. by said jacquard mechanism to cause a numberof individual drivers 'to come into operativeV connection with said means for imparting intermittent rotation to the drivers, the select-ion of theoperative drivers being controlled by ra pattern chain of the jacquard mechanism.

1 fr. A braiding vrmachine j comprising in combination, a base plate, a plurality` of drivers rotatably mounted on said base plate and spaced around a circle, acam on each driver, a roller cooperating with" said cam, a spring pressingl Vsaid roller against said vcam and adapted to cause thereby a turning motion of the driver, a toothed rim, means to oscillate said toothed rim, teeth provided on each driver adapted to be brought in and out of mesh with said toothed rim so that to each driver of a group comprising every alternate'driver an intermittent turning motion in one direction may be imparted when said toothed rim oscillates in one direction and to each driver of a group comprising every driver intermediate to the kdrivers of the first group an intermittent turning motion in the other direction may be imparted,V said turning motion being completed to a desired extent kby the action of said cam, roller and spring arrangement, aV jacquard mechaiisin, projections provided on said drivers, and a displaceable stop pin to Veach driver cooperating 7ith said projections'and opera?` tively connected to said jacquard mechanism,

the. displacement of said stop pin causing the:

respective drivers to come into operative con# nection with said oscillating means for im- Y parting intermittent rotation to said drivers;

In testimony Whereof'I'aIix my signa- 

